Improvement in composition-stoppers for vessels



UNITED STATES.

. PATENT QFFICE.

MORGAN W. BROWN, OF NEW YORK, N. Y.

IMPROVEMENT lN COMPOSITION-STOPPERS FOR VESSELS.

Specification forming part of Letters Patent No. 121,152, dated November21, 1871 antedated November 9, 1871.

To all whom it may concern:

Be it known that I, lVIORRAN W. BROWN, of the city, county, and State ofNew York, have invented a new and Improved Composition-Stopper forVessels; and I do hereby declare the following to be a full, clear, andexact description thereof, which will enable those skilled in the art tomake and use the same.

This invention relates to a chemically-prepared stopper, which isintended particularly for vessels containing volatile liquids, such asspirits of turpentine, naphtha, or other hydrocarbons or ethers, butwhich can be used for vessels of any desired description and containingliquids or gases of any kind, with the exception of a few acids.

My stopper is prepared of a composition of glycerine, gelatine, and analkali, which are mixed together in about the proportion of thirty partsof glycerine, forty parts of gelatine, and four parts of an alkalinesolution of 10 Baum. From this mixture stoppers of the required size areformed by means of suitable molds, or the mixture may be rolled out insheets of suitable thickness and the stopper punched out therefrom inthe same manner as cork stoppers are now made. In some cases I take anordinary cork stopper of the required size and coat it with mycomposition by dipping it therein or otherwise; but in this case theproportions of the ingredients must be somewhat changed, so as toproduce a liquid in which the cork stoppers can be dipped. In some casesthe composition may be made without the alkali, or instead-of the alkalisome other salt may be used.

By either of these processes a stopper is obtained which is impermeableto volatile liquids, such as naphtha, benzine, spirits of turpentine,sulphuric ether, chloroform, and which, when inserted into a glassbottle, closes the mouth. thereof hermetically, so that the ground-glassstoppers now used for closing bottles containing volatile liquids can bedispensed with. My stoppers can, however, also be used for casks orbarrels; and they can be produced very cheap, so

that they are within the reach of the general public.

What I claim as new, and desire to secure by Letters Patent, is

1. A chemically-prepared stopper, made of glycerine and glue mixed withor without an al kali, substantially as described.

A cork stopper coated with a composition of glycerine and glue, mixedwith or without an alkali, substantially as set forth.

MORGAN W. BROWN.

